Heat exchange device



Aug. 18, 1931. F. w. WILLIAMS .HEAT EXCHANGE DEVICE 4 FiledvMay 20. 19292 Sheets-Sheet l Franc/s W l/I//Mams fnl/er) ar Aug. 18, 1931. F, w.WILLIAMS HEAT EXCHANGE DEVICE Filed May 20. 1929 2 Sheets-Sheet 2Franc/.s M/ I/V//ams 3o flow. ot Water, saidllovv of Water being con-Patented Aug. 18, 1931 ieiasz.

i @LT E i FRANCIS W. WILLIAMS; 0F CHARLOTTE, 'NORTH CAROLINA HEATEXCHANGE' DEVICE Application-.filed Mayl 20, 1929i Serial No..l 364,490.

'.Ehisinvention. relatesto a heat exchange deviceJ and: more especiallytof a device for cooling Water which isdesired to be used for, icemakingand` also for cooling any other fluid= which may be desiredV toy bepassed through. themachine.

An. obj ectoff` my: invention is to. provide a heat exchangeV device in`Which a plurality o pipes` are adapted. to. pass a. refrigeratingagencythrough a series of troughs and; said. troughs. are adapted. toreceive the. fluid whichV is adapted. to be cooledand to convey the Huidfrom one troughto.anothenand'- to allow the fluid: to yfall into a vatfrom whence it is. taken to.. be used..

Another object ot my invention is to pro.- v.id'e\a heat eXchangedevicein vvhich a uid is passedx through ai plurality offpipes and said pipesare submerged in a `plurality ofl troughs,`vvith-. means for retardingthefflovv of the luidd'esi'red to beY cooled through the troughs,together With. means for permitting the troughs tofbe entirely. emptiedWhennot. in, use and-saidl emptying operation to; be entirelyautomatic,y and' also to provide means for automatically stoppingy the;flow off they refrigeratingty fluidi When the Water. inl vthe tank belowthe machine. reaches a" predetermined temperature, degree; togetherWith-.means for automatically. controlling the trolled by thelevelof theWater or any fluid which is:` desired to `be`- refrigerated and vvhiehrest inV the tankbelow the;- heat ezt-v ohangedevice.

' Some`y oil the objects off my invention-Q having,` beenI stated otherf objects Will-.appear-"as the description proceeds when taken invconnection with the'accompanying drawings,`

in Whiehv Figure 1 isl aside elevation; partially `in erossesectionl ofmy heat. exchange, device Figure` 2* is a4 vieW- taken `along the line2?-2 in. Figure` 1;

Figure 3 is a, vievv taken along the line` 3 3 in Figure 2; l

Figure 4. is a cross-sectional view taken along the line 4 4 .in Figure2;`

Figure 5'is a detail view ofthe means for. connecting the three pipestogether at. each, end ofthe heat exchangeY device.

Referring more particularly to the drawings the numeral'lO`indicatesabox member in which my deviceris adapted to be placed foroperation,V the ends off said boX member being designated by thereference characters 11 and 1.2 the side portion. of, saidV boxmemberbeing designated by the reference` character 13, only one of said sidepor.- tions being shovvn in Figure L but the. side opposite to the side13 is identical' to the said. side 13. I provide a tank. member 1x5which has the endl members `lJGYand 17 andA the. side member 18.Thistank has a metal.-v lic liningv 19-'and` the metallic covering 2Otherearound with. sheets of cork 2l. between said metallic members toprovide an insu: latedfta-nk. for preserving the'loW tempera.- tureofthe Water. y i j In the bottom off` ythe tank I' mount the pipe 22which is the outlet Vpipe through yWhich the refrigeratedliquid canbedrawn Vfor use.. rEhis pipe is secured tothebottomv of the tank bymeansof the threaded flangenlember 2,3 being secured in place by meansofftheboits 2.4. The bottom. member 2510i the box in ivhichmy device isadapted to operate has the ,hole 26 therein through which. the pipe 22is adapted to pass.. It is evidentthat this tank and the machineivhichis mounted therein can be lifted out ot the boX memberif desired.,Secured tol the side portion ofthel tank 15' are the four upstandlh ingmembers3G., 3.1;, 32 and 33 which meurbers are adapted to support thetroughs into Whichthe Water. orother liquid whichV is siredtobercirigerated is poured andpassed therethrough.v These members 30 to 33in.- clusive have a plurality of'bolts, Which are in: 90

, dicated by the reference character 35, passing therethrough, and onthese bolts the troughs 36, 37, 38, 39, 40, 41 and 42 are adapted torest in approximately a level position. A plurality of pipes are adaptedto be mounted in said troughs. The pipe 50 is lead through the side ofthe tank at the bottom of the machine and branches outwardly by means ofthe members 51, 52 and 53 and the three pipes 54, 55 and 56 areconnected to this pipe 50 and these pipes 54, 55 and 56 are lead throughone trough and then up through another trough and so on until they reachthe top of the machine where they are joined together by exactly thesame mechanism as is shown in Figure 5 and has previously beendescribed, and the pipe 58 leads the refrigerating fluid back to thesource from which it came such as a` com-l presser. Each of thesetroughs have one closed end and one open end, and in the open end ofeach trough there is a device for retarding the flow of water througheach of the troughs and to cause the pipes to be entirely submerged bythe water or the fluid which is desired to be refrigerated at all timeslThis retarding device comprises the members 60 and 61 which are hollowedout to fit around the pipes and the gasket member 62 is adapted to beplaced between these members 6() and 61 to pass around the top portionsof each of the pipes and the gasket member 63 is adapted to also beplaced between the members 60 and 61 and to pass around the lower facesof each of the pipes, and then the gasket member 64 is adapted to beplaced between the members 60 and- 61 and the trough member. The bolts65 and 66 pass through the members 60 and 61 and the gasket members 62and 63 and also through the bottom of the trough member and thus firmlysecures this retarding device in position, and prevents water or otherfluid which is being refrigerated from passing out ofthe end of thetrough except over the top, and the top of this retarding device beingabove the upper surface of the pipes causes the water or other fluidwhich is desired to be refrigerated to cover the pipes at all times.Each of the troughs have a plurality of holes 67 therein which permiteach of the troughs to drain when operation of the machine ceases. Theend of the troughs have the gasket member 64 extending slightly abovethe top of the retarding device 61 so as to prevent water from leakingbetween the head on the bolt and the wall portions of the trough so asto cause the water to fail to fall over the retarding device near thewall portion, and the wallportions of the trough have the inwardlycurved portions 70 and 71 which direct the water inwardly so that itwill fall entirely into the next preceding trough below without anyfalling over the side of the next proceeding trough below.

These members 30 to 33 inclusive are braced together by means of thebrace members 72 and 73.

The water or other fluid which is desired to be passed through mymachine for purposes of refrigerating the same is conducted to the topof the machine by means of the pipe 74 and the valve 75 is located insaid pipe with the rod 76 extending downwardly from said valve with thefloat 77 on the lower end thereof, the purpose of this arrangement beingto operate the valve by means of the float member 77 so that when apredetermined level is reached in the tank 15 that the flow of waterwill be automatically shut off or diminished as the case may be.

I also provide the thermostatic switch 8O in the vat with the wires 81and 82 leading upward therefrom which wires are lead to the electricmotor operating the compresser for forcing the refrigerating fluidthrough the machine so that when a predetermined degree of temperatureis reached in the refrigerated fluid which falls into the tank 15 thatthe device will be automatically closed and the refrigerating fiuid willnot be passed through the pipe until the temperature rises to apredetermined point at which time the thermostatic switch willautomatically start the compresser into operation and themachine willagain function to pass the refrigerating fluid through the machine.

In the drawings and specication I have set forth a preferred embodimentofv my invention, and although specific terms are employed they arelused in a generic and descriptive sense only, and not for purposes oflimitation, the scope of the invention being set forth in the appendedclaims.

I claim:l

1. In a heat exchange device, a plurality of troughs mounted one abovethe other, said troughs being in the same vertical plane and beingparallel to each other, said troughs being adapted to receive a fluid tobe refrigerated, said fluid being adapted to pass from the end of onetrough and to fall into the end of another trough, and so on through theseries, a coil passing through each of the troughs and being bent afterleaving one trough to follow the course of the next preceding troughrespectively, a4 retarding member in the open end of each ofthe troughsadapted to retard the flow of the fluid adapted to be refrigerated untilthe fluid has covered'the coil in the trough, andra plurality of holesin the bottom of each trough adapted to permit the. trough to drain whenthe machine is not in operation.

2. In a water cooling machine, a plurality of troughs placed one abovethe othervr and one trough being adapted to empty'into the nextsucceeding trough therebelow, a'coil of pipes adapted to be passed upthrough all of the troughs and being bent after leaving one trough toenter the next succeeding trough above, said coil of pipes being adaptedto have conveyed therethrough a refrigerating fluid, each of saidtroughs in its discharge end having a ret-arding dam which is adapted tocause the level of the fluid to be refrigerated to rise above thekpipesbefore falling from one trough into the next succeeding trough below,and means on the side of the trough for directing the falling fluid awayfrom the edges of the next suoceeding trough therebelow.

In testimony whereof I aix my signature.

FRANCIS W. WILLIAMS.

